Downtown Quincy has seen a great deal of change in recent decades, and certainly since the first European settlers set foot here nearly four centuries ago. But the biggest transformation may be yet to come. In an occasional series called "Develop Quincy," the Patriot Ledger details the grand proposals to redevelop Quincy Center, and how city officials, businessmen and citizens are shaping the city’s future. Here are links to stories, photo galleries, videos and other material published Oct. 5-9, 2010.